Stamping process is a very high production efficiency less chip or no cutting advanced processing methods, it is characterized by: relying on the die and stamping equipment to complete the processing, easy to achieve automation, high productivity, easy to operate, high material utilization, in batches or large quantities in the production of low manufacturing costs, the production process is easy to realize mechanization, automation, can obtain a certain degree of precision, to meet the interchangeability of Requirements, in modern industrial production, stamping process has become an indispensable metal processing methods. For example, in the process of water tank factory production of stainless steel water tank, stainless steel plate stamping process occupies an important position. The main processes of stamping process? (1) Separation process: a part of the plate or blank and another part of the separation or partial separation of the process, including shearing, blanking and other processes. Shearing: cutting the sheet with a shear blade to separate it along the unenclosed perimeter.
Punching: drop - so that the workpiece along the closed contour and the sheet completely separated, punching down part of the workpiece; punching - so that the waste material along the closed contour and the workpiece completely separated, punching down part of the waste material; cutting edge -- the hollow workpiece obtained by stretching the edge part of the excess material cut off, so that it has a certain neat shape. (2) deformation process: make plate blanks, block blanks or blanks (i.e., semi-finished products between the stamping process) part or all of the geometric shape changes in the process, including bending, stretching, molding, cold extrusion and other processes. Bending: bending flat blanks, so that the flat shape into a three-dimensional shape. Stretching: the flat blank is pressed into the desired shape of the hollow parts, or further change the shape and size of the hollow parts. Forming: shaping - stamping the resulting compression, after finishing deformation, so that the workpiece to get the exact shape and size; shrinkage - hollow blanks or tubes at the open end of the diameter of the braided small, to get the shape of the braided shape of the workpiece; flanging - the holes in the blank to make the three-dimensional shape of the blank to the hole. - the hole on the blank or hollow workpiece on the bottom hole pressed into a larger than the hole diameter of the flange or other shapes of the vertical edge; local molding - the flat plate blank, pressed into the shape of the undulating. Cold extrusion: so that the metal in the mold cavity by extrusion to produce plastic deformation, the blank into the required shape, size and certain properties of the part.